ITEM NAME:220X220mm Double Sided Textured PEI Spring Steel Sheet For Ender 5 img *{margin:0;padding:0;.Genuine PEI powder coating. Wipe the print surface before and after a print with isopropyl alcohol to maintain a clean surface for maximum bed adhesion strength. If printing PETG, TPU, TPE, and, make sure the bed is heated BEFORE attempting to remove the print from the bed.